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I have some dino on glass before, however, after i got rid of most of my bubble algae then dino have come back a lot more. Perhapd less competition for nutrients. They are all in glass at the moment not so much on rocks. Is it safe to use algae scrapper to manually remove them or will it make it worse that after i scrap they will travel to live rocks and start growing on rocks? These algae are brown colour full of bubbles and when i gently it it broke down to like dust.

Regarding living rock I think it's a matter of luck. Six months ago I bought 6 kgs of an Indonesian batch that came with oxyrrhis marina. It took less than a week to clean a 600 gal tank from an ostreopsis outbreak.

A few weeks later, oxyrrhis starved and vanished. Ostreopsis showed up again (it forms cysts).

I think that the key is:
- Being lucky and get a good living rock batch
- Keep on feeding the pods from that rockwork as most of them will starve when dinoflagellates get eaten.

I have never done it in that way. I just let the skimmate sit in the skimmer cup for 2/3 weeks and poured it into the tank (a whole gallon of black stinky stuff).
Did a nitrate and phosphate test and it had nothing. On the microscope I could spot three or four kinds of bacteria and many nematodes.

The water got noticeable blackish and dirty for several hours and ALL my corals (more than 800 acros, poccis, seriatoporas...and about 40 LPSs) opened in an amazing way with awesome polyp extension. I did not notice anything weird with my fish and snails went nuts eating sediments.

My theory is that if you let the skimmate sit for some days, there will be a competition and the strongest bacteria and critters will remain after all nutrients are eaten. These surviving bacteria and critters will be an awesome meal for corals and other inverts in the tank. When poured they will keep on competing and eating other critters in the tank, playing havoc amongst dinoflagellate colonies which are on the first trophic stage.

Cool, thanks for the info. I have a full skimmer cup from when I stopped skimming on Sunday. I could use that.

"Derived from the Greek words phyto (plant) and plankton (made to wander or drift), phytoplankton are microscopic organisms that live in watery environments, both salty and fresh.
Some phytoplankton are bacteria, some are protists, and most are single-celled plants. Among the common kinds are cyanobacteria, silica-encased diatoms, dinoflagellates, green algae, and chalk-coated coccolithophores."

I am so excited. I finally pulled the trigger and ordered my microscope. Just got the email saying it should be arriving tomorrow. I went for a Trinocular compound microscope along with a 720P Wifi cam and an adapter for my Nikon. I considered the phase contrast version, but it adds quite a lot to the cost (over double) so I figured I would try a basic bright field setup first. I am finally going to be able to inspect my tanks micro-organisms in a more detailed way.

Hopefully these will be decent quality for aquarium use and serve me well.

I am so excited. I finally pulled the trigger and ordered my microscope. Just got the email saying it should be arriving tomorrow. I went for a Trinocular compound microscope along with a 720P Wifi cam and an adapter for my Nikon. I considered the phase contrast version, but it adds quite a lot to the cost (over double) so I figured I would try a basic bright field setup first. I am finally going to be able to inspect my tanks micro-organisms in a more detailed way.

Hopefully these will be decent quality for aquarium use and serve me well.

My skimmer is still off and the chemiclean instructions say to run the skimmer and do a water change which I am avoiding.

Are you running air stones? They recommend running the skimmer (and allowing it to overflow back into the system) because it acts as a massive aerator. Oxygen levels drop while dosing chemiclean. Most system crashes while dosing chemiclean happen because people don't aerate enough or at all. (fair warning)

Alright guys update, My dinos are gone. Knock on wood. I'm up to running my lights 6 hours a day and no dinos have returned and my corals a flourishing. Things I've done:

Removed Sand bed kept BB
Removed and soft scrubbed all rock
Dosed H202 for 5 days
Went lights out for 6 days
Added new sump, skimmer and attached Coralife UV sterilizer to return line.
Added 3 new fish
heavy water changes during the lights out period sucking out all visible dino (I know people say wc feed them but it worked for me)
One of the new fish had ich so pulled all fish and put them in hospital tank (maybe the ich had something to do with getting rid of the dino?)
Tank currently just has coral and a cleaner shrimp in it for the next 72 days.

I'll post pics later to show how good my tank is looking, not a dino in sight.

Guys let me know if you think this is cyano or Dino's. Originally it had a stringy Dino look to it, I've blacked out for 2 days with seemingly no difference. Just now, I turned my pumps off and it seems to have almost settled into a cyano looking type mat. I'm just confused because I've never seen a system wide cyano outbreak kind of situation. I will post pictures and video from the "before" stringy appearance to the now "matted" appearance and would like to know what you guys think.

I am so excited. I finally pulled the trigger and ordered my microscope. Just got the email saying it should be arriving tomorrow. I went for a Trinocular compound microscope along with a 720P Wifi cam and an adapter for my Nikon. I considered the phase contrast version, but it adds quite a lot to the cost (over double) so I figured I would try a basic bright field setup first. I am finally going to be able to inspect my tanks micro-organisms in a more detailed way.

Alright guys update, My dinos are gone. Knock on wood. I'm up to running my lights 6 hours a day and no dinos have returned and my corals a flourishing. Things I've done:

Removed Sand bed kept BB
Removed and soft scrubbed all rock
Dosed H202 for 5 days
Went lights out for 6 days
Added new sump, skimmer and attached Coralife UV sterilizer to return line.
Added 3 new fish
heavy water changes during the lights out period sucking out all visible dino (I know people say wc feed them but it worked for me)
One of the new fish had ich so pulled all fish and put them in hospital tank (maybe the ich had something to do with getting rid of the dino?)
Tank currently just has coral and a cleaner shrimp in it for the next 72 days.

I'll post pics later to show how good my tank is looking, not a dino in sight.

Good luck guys, feel like I've won this battle

Well, you sure don't hesitate once you've decided to treat.

Keep a really close eye on your ammonia levels, you might have nuked a lot of the biofilter there between scrubbing your rocks, removing sand, the peroxide. Maybe ghost feed the tank while your fish are in QT?

Guys let me know if you think this is cyano or Dino's. Originally it had a stringy Dino look to it, I've blacked out for 2 days with seemingly no difference. Just now, I turned my pumps off and it seems to have almost settled into a cyano looking type mat. I'm just confused because I've never seen a system wide cyano outbreak kind of situation. I will post pictures and video from the "before" stringy appearance to the now "matted" appearance and would like to know what you guys think.

2nd pic does look like cyano. I have both cyano and dinos (good grief) and 2 day blackouts don't seem to affect either one much. 3+ days is the magic number. Cyano comes off in big sheets if you gently pull it. The bubbles look more like they're inside or under the mat where dinos seem to have bubbles at the end of the strings.

H2O2 is a weak acid but will certainly kill bacteria. Both dinos and cyano like it when there isn't much competition. Given the choice, I'd sure opt for cyano.